JL
James Lambert — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this James Lambert across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Alden & Mary — first a son (b.~1913), then head of a 3-person household.
Age 27
b. ~1913
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Lambert |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Haverhill City |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Haverhill City |
| Est. Birth Year | ~1913 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Mary Lambert | Spouse | — | 44 | ~1896 |
| James Lambert | Son | — | 27 | ~1913 |
| Alden Lambert | Head | — | 47 | ~1893 |
Census Appearances
1920
Essex, Massachusetts
Son, age 4
Essex, Massachusetts · implied b. ~1916 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lambert |
| Given Name | James J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | New York |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Essex, Massachusetts
Son, age 14
Essex, Massachusetts · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lambert |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | New York |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Son, age 27
Essex-County, Massachusetts · implied b. ~1913 — 3 household members
| Surname | Lambert |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Haverhill City |
| 1935 Residence (County) | Essex |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links James Lambert across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alden Lambert (~0.92 confidence) and mother Mary Lambert (~0.92 confidence) and father Alden Lambert (~0.92 confidence) and mother Mary Lambert (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alden Lambert
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Mary Lambert
b. ~1892
Source mother
● Household
· direct · ~0.92
Father
Alden Lambert
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Mary Lambert
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Lambert
Son · 1940 · age 27 · b. ~1913 · Massachusetts
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01580-00005)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 3 | Etta A Quimby | 80 | Head | — | New Hampshire |
| 4 | Robert H Quimby | 50 | Son | — | Massachusetts |
| 5 | Madeline F Quimby | 43 | Daughter-in-law | — | Massachusetts |
| 6 | Anne F Murray | 53 | Daughter | Clerk Typist | Massachusetts |
| 7 | Earl N Murray | 53 | Son-in-law | Insurance Sales | Massachusetts |
| 8 | Welles C Smith | 72 | Son-in-law | — | New Hampshire |
| 9 | Rose A Taylor | 60 | Head | — | New Hampshire |
| 10 | Leonard Page | 63 | Lodger | — | Massachusetts |
| 11 | Mary Castle | 54 | Head | — | Canada English |
| 12 | Marion Castle | 57 | Daughter | — | Rhode Island |
| 13 | Joseph Castle | 53 | Son | Stage Hand | Rhode Island |
| 14 | Frank Castle | 45 | Son | Ticket Salesman | Rhode Island |
| 15 | Alden J Lambert | 47 | Head | Heeler | New York |
| 16 | Mary C Lambert | 44 | Wife | Shopworker | Massachusetts |
| 17 | James Lambert THIS PERSON | 27 | Son | — | Massachusetts |
| 18 | Edson Davis | 28 | Head | Salesman | Massachusetts |
| 19 | Evelyn Davis | 24 | Wife | — | Massachusetts |
| 20 | Edson Jr Davis | 0 | Son | — | Massachusetts |
| 21 | Allan J Bellati | 27 | Head | Shop Foreman | Massachusetts |
| 22 | Carolyn Bellati | 25 | Wife | — | New York |
| 23 | Effie Crowley | 49 | Head | Hairdresser | New Hampshire |
| 24 | Josephine Champagne | 50 | Boarder | Burnisher | Maine |
| 25 | John T Toughie | 51 | Head | Fireman | Vermont |
| 26 | Annibonetti Toughie | 40 | Wife | Wood Heel Coverer | Massachusetts |
| 27 | Louis C Stoyt | 49 | Head | Press Operator | Canada English |
| 28 | Oliver V Stoyt | 26 | Son | Truck Driver | Massachusetts |
| 29 | Oscar Levasseur | 44 | Head | Waiter | Canada French |
| 30 | Alma Levasseur | 47 | Wife | — | New Hampshire |
| 31 | Oscar Jr Levasseur | 17 | Son | — | Massachusetts |
| 32 | Lorraine Levasseur | 15 | Daughter | — | Massachusetts |
| 33 | Roland Levasseur | 14 | Son | — | Massachusetts |
| 34 | Norman Levasseur | 11 | Son | — | Massachusetts |
| 35 | Jean Levasseur | 10 | Daughter | — | Massachusetts |
| 36 | Barbara Levasseur | 8 | Daughter | — | Massachusetts |
| 37 | Henry Salois | 52 | Head | Carpenter | Massachusetts |
| 38 | Corinne M Salois | 50 | Wife | — | Massachusetts |
| 39 | Irving Macneil | 55 | Head | Laborer | Massachusetts |
| 40 | Ines Macneil | 51 | Wife | — | Massachusetts |
Pedigree Summary
James
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)